# Resolving CORS Error in Taiga Development Environment
**URL:** https://community.taiga.io/t/resolving-cors-error-in-taiga-development-environment/3603
**Category:** Troubleshooting
**Created:** [June 28, 2024, 2:17pm UTC](https://community.taiga.io/t/resolving-cors-error-in-taiga-development-environment/3603 "2024-06-28T14:17:56Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Subash\_Shanmugam](https://community.taiga.io/u/Subash_Shanmugam)
#### Post date: [June 28, 2024, 2:17pm UTC](https://community.taiga.io/t/resolving-cors-error-in-taiga-development-environment/3603/1 "2024-06-28T14:17:56Z")
Hi Taiga Community,
I’m currently setting up a development environment for Taiga on Ubuntu server via vm ware, the steps followed by and have encountered a Cross-Origin Resource Sharing (CORS) error when trying to access the Taiga front-end. I’ve tried several configurations, but the issue persists. Here’s a brief overview of my setup and the steps I’ve taken:
### Setup Overview
- **OS:** Ubuntu
- \*\*Taiga Version:6.8.0
- **Backend:** Django python3.8
- **Frontend:** (Taiga front-end)
- **Web Server:** Nginx
- **Database:** psql (PostgreSQL) 12.19 (Ubuntu 12.19-1.pgdg24.04+1)
### Issue
When I try to access the front-end, I receive the following CORS error in the browser console:
```auto
The stylesheet http://taskusfdev.thepermatech.pit/v-1719498476318/styles/theme-taiga.css was not loaded because its MIME type, “text/html”, is not “text/css”
```
Additionally, there are CORS errors when making API requests.
### Steps Taken
#### 1. **Configured CORS in Django (Taiga Back-end)**
- **Installed `django-cors-headers`** :
```bash
pip install django-cors-headers
```
- **Updated `settings.py`** :
```python
INSTALLED_APPS = [
...
'corsheaders',
...
]
MIDDLEWARE = [
...
'corsheaders.middleware.CorsMiddleware',
'django.middleware.common.CommonMiddleware',
...
]
CORS_ALLOWED_ORIGINS = [
"http://your_frontend_domain",
"http://another_allowed_domain",
]
```
Tried allowing all origins:
```python
CORS_ALLOW_ALL_ORIGINS = True
```
- **Restarted the Django server** :
```bash
python manage.py runserver
```
#### 2. **Configured Nginx**
- **Nginx Configuration for the back-end** :
```nginx
server {
listen 80;
server_name your_backend_domain;
location / {
proxy_pass http://192.168.1.100:8000;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
# Add CORS headers
if ($request_method = 'OPTIONS') {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
add_header 'Access-Control-Max-Age' 1728000;
add_header 'Content-Type' 'text/plain; charset=utf-8';
add_header 'Content-Length' 0;
return 204;
}
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
}
}
```
Despite these configurations, the CORS error persists. I suspect there might be additional steps or configurations that I’m missing.
### Questions
1. **Is there a specific configuration for Taiga that I might be missing?**
2. **Are there known issues or additional settings required to resolve CORS errors in the Taiga development environment?**
3. **Any advice or guidance from those who have successfully set up Taiga as development environment would be greatly appreciated!**
Thank you in advance for your help!
Best regards,
Subash S
---
### Author:  [@Charlie](https://community.taiga.io/u/Charlie)
#### Post date: [July 1, 2024, 6:50am UTC](https://community.taiga.io/t/resolving-cors-error-in-taiga-development-environment/3603/2 "2024-07-01T06:50:59Z")
Hi there,
I found [this thread](https://community.taiga.io/t/stylesheet-not-loading-properly/2231/9) where they discuss an error similar to yours, does this help?
In their case, it’s not a development environment, though most things should still apply.
Best regards!
---
### Author:  [@Subash\_Shanmugam](https://community.taiga.io/u/Subash_Shanmugam)
#### Post date: [July 23, 2024, 1:35pm UTC](https://community.taiga.io/t/resolving-cors-error-in-taiga-development-environment/3603/3 "2024-07-23T13:35:52Z")
Thanks for your reply,
In my issue I’ve missed to add the below headers in the taiga back end
taiga-back\settings\common.py
CORS\_ALLOW\_HEADERS = [
‘x-session-id’,
‘content-type’,
‘accept’,
‘origin’,
‘authorization’,
‘x-csrftoken’,
‘x-requested-with’,
‘x-lazy-pagination’,
‘x-disable-pagination’,
‘set-orders’,
]